NTIC Data Breach: Social Security Numbers Exposed

Northern Technologies International Corp., a Minnesota-based specialty chemicals company, disclosed a data breach connected to a ransomware attack on its computer network. NTIC did not disclose the total number of individuals affected by the breach.

Between Feb. 13 and Feb. 18, 2026, an unauthorized actor may have gained access to and acquired files on NTIC's computer network.

On Feb. 26, 2026, roughly one week after the breach window ended, a ransomware group known as Chaos claimed responsibility for the attack, claiming it had obtained 400 GB of the organization's data.

On June 5, 2026, NTIC confirmed the names and addresses of the individuals whose information was involved in the breach. The company also confirmed the specific types of data that may have been compromised during the breach window, which included full names, Social Security numbers and driver's license numbers.

NTIC began notifying affected individuals on June 26, 2026. The company posted a notice of the data security incident on its website, detailing the breach.

NTIC's response to the breach

NTIC is offering affected individuals complimentary credit monitoring services to those whose Social Security number was compromised. NTIC encourages potentially affected individuals to take appropriate steps to protect themselves.

NTIC has established a dedicated call center to answer questions from individuals who received a notification letter. Representatives are available at 844-959-7132, Monday through Friday from 8:00 a.m. to 5:30 p.m. Central Time, excluding major U.S. holidays.